Gemstone



FIG. 1 is a perspective of a gemstone showing my new design;

FIG. 2 is another perspective of the gemstone of FIG. 1, with the table tilted away from the viewer;

FIG. 3 is a top view of the gemstone of FIG. 1;

FIG. 4 is a bottom view of the gemstone of FIG. 1; and,

FIG. 5 is a side view of the gemstone of FIG. 1, with the opposed side view being symmetrical. 

CLAIM The ornamental design for a gemstone, as shown and described. 